Search for the production of deuterons and antideuterons in e+e- annihilation at center-of-mass energies between 4.13 and 4.70 GeV
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Using a data sample of e+e- collision data corresponding to an integrated luminosity of 19 fb-1 collected with the BESIII detector at the BEPCII collider, we search for the production of deuterons and antideuterons via e+e-→ppπ-d¯+c.c. for the first time at center-of-mass energies between 4.13 and 4.70 GeV. No significant signal is observed and the upper limit of the e+e-→ppπ-d¯+c.c. cross section is determined to be from 9.0 to 145 fb depending on the center-of-mass energy at the 90% confidence level. © 2024 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3.